\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Correlation Between Secondary Education and Index of Political Particiaption}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                    &\multicolumn{1}{c}{Pooled}&\multicolumn{1}{c}{Democracies}&\multicolumn{1}{c}{Open Anocracies}&\multicolumn{1}{c}{Closed Anocarcies}\\
\hline
Schooling dummy: at least secondary completed&      0.0295\sym{***}&    -0.00935         &      0.0956\sym{***}&      0.0595\sym{***}\\
                    &   (0.00658)         &   (0.00902)         &    (0.0166)         &    (0.0117)         \\
[1em]
Age                 &       0.170\sym{***}&       0.160\sym{***}&       0.179\sym{***}&       0.188\sym{***}\\
                    &   (0.00279)         &   (0.00354)         &   (0.00827)         &   (0.00533)         \\
[1em]
Gender              &     -0.0915\sym{***}&     -0.0765\sym{***}&      -0.105\sym{***}&      -0.113\sym{***}\\
                    &   (0.00271)         &   (0.00359)         &   (0.00738)         &   (0.00492)         \\
\hline
Observations        &       53065         &       30136         &        6819         &       16110         \\
\(R^{2}\)           &       0.181         &       0.171         &       0.168         &       0.197         \\
Country FEs         &         Yes         &         Yes         &         Yes         &         Yes         \\
AB Round FEs        &         YES         &         YES         &         YES         &         YES         \\
Mean of Outcome     &     0.00576         &      0.0484         &      -0.182         &     0.00543         \\
SD of Outcome       &       0.684         &       0.679         &       0.661         &       0.689         \\
Min of Outcome      &      -1.705         &      -1.606         &      -1.705         &      -1.657         \\
Max of Outcome      &       1.915         &       1.915         &       1.720         &       1.915         \\
\hline\hline
\multicolumn{5}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
